491237500

素因数分解:

$2^2\times 5^5\times {\mathrm{13}}^1\times {\mathrm{3023}}^1$

素因数の和:3065

約数の個数: 72

約数和(自身を含む): 1157550912

約数和(自身を除く): 666313412

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 125, 130, 250, 260, 325, 500, 625, 650, 1250, 1300, 1625, 2500, 3023, 3125, 3250, 6046, 6250, 6500, 8125, 12092, 12500, 15115, 16250, 30230, 32500, 39299, 40625, 60460, 75575, 78598, 81250, 151150, 157196, 162500, 196495, 302300, 377875, 392990, 755750, 785980, 982475, 1511500, 1889375, 1964950, 3778750, 3929900, 4912375, 7557500, 9446875, 9824750, 18893750, 19649500, 24561875, 37787500, 49123750, 98247500, 122809375, 245618750, 491237500]

約数ペア:

[(1, 491237500), (2, 245618750), (4, 122809375), (5, 98247500), (10, 49123750), (13, 37787500), (20, 24561875), (25, 19649500), (26, 18893750), (50, 9824750), (52, 9446875), (65, 7557500), (100, 4912375), (125, 3929900), (130, 3778750), (250, 1964950), (260, 1889375), (325, 1511500), (500, 982475), (625, 785980), (650, 755750), (1250, 392990), (1300, 377875), (1625, 302300), (2500, 196495), (3023, 162500), (3125, 157196), (3250, 151150), (6046, 81250), (6250, 78598), (6500, 75575), (8125, 60460), (12092, 40625), (12500, 39299), (15115, 32500), (16250, 30230)]